Hi Erwin, A host drawing should display all of its xrefs whether they are raster files or DWG files. For that purpose, the xref files should be available in your AutoCAD WS account either in the same folder as the host drawing or in a folder of similar path to the original location on the local computer. Once the xrefs are displayed, they will be available in your AutoCAD WS account whether you access the drawing from the mobile or the web app. For more information about uploading xrefs, try this tutorial: http://www.autocadws.com/tutorials/?portfolio=managing-fonts-xrefs-and-stylesheets Please note that AutoCAD WS does not currently support PDF attachments. If your xref maps are in PDF format, they will not display. Thanks.
Tirza Ben-Ner
AutoCAD 360 Support Specialist